A kind of multifunctional metal surface treatment additive containing boride diethanolamine phosphate and preparation method thereof

Abstract

The invention relates to a method for preparing a milt-functional metal surface treatment additive containing boride diethanolamine phosphates, which comprises steps: diethanolamine and phosphate esterification agents are added into a reaction kettle to react, are hydrolysed and concentrated to obtain a viscous liquid, a water-carrying agent is added into the viscous liquid, a boriding agent is added to react by stirring, and the water-carrying agent is boiled up by decompressing to obtain a target product. The milt-functional metal surface treatment additive which is prepared through the method comprises 30-60% boride diethanolamine phosphates and 20-60% diethanolamine double phosphate esters. The method for preparing the milt-functional metal surface treatment additive containing the boride diethanolamine phosphates has the beneficial effects that the milt-functional metal surface treatment additive containing the boride diethanolamine phosphates has excellent antifriction, antioxidant, rust-proof and lubrication performance and the like because phosphates which are used as main components in the milt-functional metal surface treatment additive containing the boride diethanolamine phosphates contain active elements such as N, P and B and the like, is strong in anti-hydrolytic property, can improve lubricity and anti-rust property of a water-base metal working fluid by being added into the water-base metal working fluid, also can improve extreme pressure property and prolongs service life of the water-base metal working fluid simultaneously, and is an excellent multi-functional water-soluble additive.

Description

technical field [0001] The invention relates to a multifunctional metal surface treatment additive containing borated diethanolamine phosphate and a preparation method thereof. Background technique [0002] Lubrication, anti-rust, and anti-wear are important performance indicators of metalworking fluids (cutting fluids, anti-rust fluids, cleaning fluids, etc.). Over the years, scientific and technological workers have been devoting themselves to the development of multifunctional and environmentally friendly additives in order to improve the performance of metalworking fluids. [0003] Organic borate is a derivative product of hydrogen in boric acid replaced by other groups, because it has anti-friction, anti-wear and anti-oxidation properties, and has good anti-rust performance on metals at high temperatures, non-toxic and odorless, As a new class of potential multifunctional additives, it has received extensive attention. Such as the 1,2-epoxy hexadecyl borate mentioned ...

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Problems solved by technology

[0005] Although the above-mentioned organic borate additives have incomparable advantages, such as environmental friendliness, multi-function, high thermal stability, etc., but because boron is an electron-deficient element, the p-vacant orbital is easy to accept water and other unshared electricity. It is prone to hydrolysis due to the attack of nucleophiles, making it less resistant to hydrolysis

If the organic borate is hydrolyzed, the boron active ingredient in the additive will be lost, which will greatly reduce the anti-friction and anti-wear properties; the oxide or hydroxide particles formed by hydrolysis will cause metal scratches after friction, which makes organic boron Ester is limited in application

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